都是同样指客厅？

lounge:
1,A public waiting room, as in a hotel or an air terminal, often having smoking or lavatory facilities.
休息室：一间公共的等候室，比如在宾馆里或飞机终点，经常有吸烟或卫生设备
2,An establishment or a room in an establishment, as in a hotel or restaurant, where cocktails are served.
大厅：一个设施或一个设施中的一间房子（比如在一宾馆或餐馆中），此处出售鸡尾酒
3,A living room.
起居室
4,A lobby.
大厅，休息室


Parlor:
1,A room in a private home set apart for the entertainment of visitors.
客厅，起居室：在私人居室里单独开辟出的用于接待客人的房间


Living-room:
A room in a private residence intended for general social and leisure activities.Also called front room
起居室，客厅：私人住宅里的房间，用于一般的社交或休闲活动也作 front room, 可缩写成LR


Drawing-room：A large room in which guests are entertained.
客厅：招待客人的大房间




参考文献：金山词霸